EP 3072706 A4 20170726 - WEAR AMOUNT DETECTION DEVICE FOR AUTOMOBILE TIRES
Title (en)
WEAR AMOUNT DETECTION DEVICE FOR AUTOMOBILE TIRES
Title (de)
VORRICHTUNG ZUR ERKENNUNG DES VERSCHLEISSAUSMASSES FÜR AUTOREIFEN
Title (fr)
DISPOSITIF DE DÉTECTION DE DEGRÉ D'USURE POUR PNEUS DE VÉHICULES AUTOMOBILES
Publication
Application
Priority
- JP 2013241125 A 20131121
- JP 2014080201 W 20141114
Abstract (en)
[origin: EP3072706A1] Provided is a wear amount detection device that is able to detect that a tire is in a worn state, during running, without a special sensor while suppressing an increase in cost. The device includes: a rotation sensor (2) detecting rotation of a wheel (1) to measure a speed of an automobile; a signal processing (3) extracting rotation speed fluctuations synchronized with rotation, from a rotation signal detected by the rotation sensor, and obtain a rotation speed fluctuation pattern synchronized with rotation, from rotation speed fluctuations over a plurality of rotations; and a wear state determination (4) configured to: obtain, from the obtained pattern, a value of a component induced by a characteristic embodied in a tire (1a) of the wheel (1), the value varying in accordance with a wear state of the tire (1a); estimate a wear state of the tire (1a); and output the state.
IPC 8 full level
B60C 11/24 (2006.01); B60C 19/00 (2006.01); B60C 23/02 (2006.01); B60C 23/06 (2006.01); G01M 17/02 (2006.01)
CPC (source: EP US)
B60C 11/246 (2013.01 - EP US); B60C 19/00 (2013.01 - US); G01M 17/02 (2013.01 - US); B60C 11/24 (2013.01 - EP US); B60C 2019/004 (2013.01 - US)
Citation (search report)
- [XY] EP 1031442 A2 20000830 - CONTINENTAL AG [DE], et al
- [ID] JP 2005186702 A 20050714 - BRIDGESTONE CORP
- [Y] WO 2010147004 A1 20101223 - NTN TOYO BEARING CO LTD [JP], et al
- See references of WO 2015076197A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3072706 A1 20160928; EP 3072706 A4 20170726; EP 3072706 B1 20181114; CN 105848932 A 20160810; CN 105848932 B 20180130; JP 2015101122 A 20150604; JP 6227385 B2 20171108; US 10112444 B2 20181030; US 2016250899 A1 20160901; WO 2015076197 A1 20150528
DOCDB simple family (application)
EP 14863813 A 20141114; CN 201480062756 A 20141114; JP 2013241125 A 20131121; JP 2014080201 W 20141114; US 201615151000 A 20160510